Thank you for the response. This is very informative. What I ultimately meant, I think, was how to get the script to identify which images go to which map. Not sure if I just missed where that was explained. I used to use a common parallax mapping plugin on MV that had you name them with a number corresponding with the map # (Ground_1.png in the parallax folder), and then in the map details you would put a tag like "<ground>, <par>, etc." to have the map look for the image.
For this script would I just follow the naming convention in your last screenshot, and it automatically checks those new folders for a map when the game loads?
Thank you again